Liquid dispensing device



Jan. 12, M, D, CHESNUT LIQUID DISPENSING DEVICE Filed Feb. 7, 1930Patented Jan. v12, 1932 1,840,933

UNITED STATES PATENT OFFICE MOLLIE D. CHESNUT, F DES MOINES, IOWA LIQUIDDISPENSING DEVICE- Applcation filed February 7, 1930. Seriall No.426,539.

The principal object of this invention is to be detachably unscrewedfrom the reservoir provide a liquid dispensing device that is portionfor lling purposes. capable of applying d-estructive liquids to Fig. 3is a side sectional view of a portion or into undesirable plant life. ofthe stem portion when the self-closing p 5 A further object of myinvention is to provalve feature is not used. 55

vide a liquid .dispensing ldevice for dispens- Fig. 4 is a bottom viewof the guard eming destructive liquids for killing undesirable bracingthe pointed applying needle. plant life such as weeds and the like thatIn the caring of beautiful lawns one is does not affect .othervegetation growing adalways troubled withundesirable weeds such jacentto the plant being killed. f as dandelions and the like. The problem isa0 VA still further object of my'invention is to eradicate such plantlife without harm to tofprovide a device for dispensing liqui'dto thesurrounding grass or other vegetation. `or into undesirable plants thatautomatically l have made this possible as will be appreciassumes aclosed condition regardless of its ated by those familiar with the art."l5 position when not actually engaging the un- I have used the numeral10 to designate the a5 desirable plant life to be treated. reservoirportion of the invention having a A still further object of my inventionis filling cap 11 capable of being threaded into to provide a device fordispensing harmful the same and enclosing the same. Extending liquids toundesirable vegetation that is free from the filling cap 11 andcommunicating fromclogging or foulingten'dencies by comwith the insideof the reservoir 10 when the 70 `ing in contact with foreignV matterwhen filling cap is threaded onto the reservoir is the .treating such.undesirable vegetation. hollow stem 12.

A still further object of my'invention is So far the above describedportion of the to provide a liquid .dispensing device for apinventioncomprises little more than the complying harmful liquids to undesirableplant mon and well known oil can used for oiling 75 life that is easy tooperate. machinery and the like and having the usual A still furtherobject of my invention is to manually depressible bottom for causingprovide a liquid dispensing device for killing liquid inside the can topass out through the undesirable plant life that eliminates the stem ofthe can. 3c"stooping or bending over of the operaOl Secured by suitablemeans to the cap 11 and so ywhile operating the invention. inside thereservoir 10 when the cap is A still further object of this invention isthreaded thereon is the bridge bracket memto provide a liquid dispensingdevice that 1s ber 13 extending above and across the bore y economicalin manufacture and durable, and of the stem 12 as shown in Fig. 1. Thenu- 0 economical in use. meral 111 designates a valve seat in the inlet85 These and other objects will be apparent to end `of ythe stem 12 andcommunicating with those skilled in the art. the bore of the same.Slidably mounted in My invention consists in the construction, the 'boreof the stem 12 and having a diameter arrangement and combination ofthevarious less than the inside diameter of the stem 12 .parts ofthedevice, whereby the objects conis the rod 15. Formed on the rear endof 90 Itemplated are attained as hereinafter more this rod 15 is a coneshaped member 16 capa- .fully set forth, pointed out in my claims kandble of engaging the valve seat 14 and enclosillustrated in theaccompanying drawings, in ing the bore of the stem 12. Threaded which;Y. through the bracket member 13 and capable Fig. 1 is a side view of myinvention in of engaging the rear end of the cone 16 is the use withsections cutaway to more fully illushand screw 17. By this constructionthe trate its interior construction. sliding movement of the rod 15 inthe bore Fig. 2 is a side sectional view of a portion of the stem 12will be limited in movement to of the invention illustrating the mannerin one direction by `making contact with the which the stem portion ofthe invention may end of the screw 17 and limited movement 1n 100 theother direction by the cone member 16 making contact with the valve seat14. By adjusting the screw 17, the reciprocatioii of the rod 15 will beadjustably confined between the two limits of its sliding movement. Inother words the adjusting of the screw 17 will regulate the distance thecone or valve 16 may move out of engagement with the valve seat 14 andthis movement will be rela-v tive to the amount of liquid passing out ofthe reservoir 10, through the stem 12 in a given length of time. Topermit then a greater amount of liquid to passthrough the stem 12 fromthe reservoir 10 the screw 17k should be rotated to the'left'therebymoving its lower end farther away from'the inlet end of the stem 12.

The numeral 18 designates a coil spring embracing the screw 17, havingone end engaging the bracket member 13 andy its other end engaging theend of the cone member 16 as shown in Fig. 1. This coil spring 18yieldingly holds the cone member 116 in Contact with the valve seat 14thereby clossuitable means'to the forward end portion of the stem 12 andextending forwardly and outwardly as shown in Fig. 1. The numeral 22designates a guard` plate secured to the free ends of the arms 2O and 21and embracing the rod 15 some distance from the forward i end of stem 12as shown in Fig. 1. The operation of the invention-is very simple. Fillthe reservoir 10 with any suitable plant killing solution or liquid suchas gasoline or the like. Place the point 19 on th'e plant to be killedand pushdownwardly on the reservoir 10 which will cause the point of therod 15 to pierce the plant to be killed as shown in Fig. 1, and thespring 18 will be compressed 'and the cone valve 16 moved out of closedengagement with the valve seat 14 permitting the killing liquid to pass.through the bore ofthe stem 12 and by capillary action follow the rod 15to the plant to be killed. If the bottom of the reservoir 10 is of thecompressible type bymanually depressing the saine yin the well knownmanner the liquid inthe reservoir 1() will be accelerated in its travelto theplant, whichin the vdrawings I have designated by the numeral 23.

By the free end of the rod 15 being pointed, an 'opening will be createdtothe heart of the yplant into which the killing fluid or liquid mayenter. The' Guard plate 22 aids in protecting the open forward end ofthe stem 12 from becoming fouled or clogged by foreign matter such asdirt or the like, which may be experienced when operating the invention.

As soon as downward pressure ceases to be v exerted on the reservoir. 10Vand the rod 15 is out of engagement with the plant to be killed thecoil spring 18 will return the cone 16 to the valve seat 14: therebyclosing the bore i in the stem and preventing any further amountofliquid to pass from the reservoir 1( This is advantageous when theliquid is highly volatile such as gasoline, and the closing and sealingof the bore in the stem preventsA the liquids in the reservoir 10 fromevaporating. v

In Fig. 2, and Fig. 3, I show the rod 15 permanently and rigidly securedagainst sliding movement inside the bore of the stein 12. Thisconstruction is desirable when the use of a valve'in the bore of thestemis not desired.

Although I have described my invention for the killing of undesirableplant life, it may be used to equal advantage formany other and variedpurposes such as the oiling of inaccessible parts of machinery. If it isdesired the rod 15 may be flexed or bent at various desirable angles andthe liquid passing through theY stem 12 will follow the rod 15 to thedesiredpoint location of application. n'

' When the construction shownin Fig. 3 is used the amount of oillpassing through the vstem 12 may be regulated by restricting the insidediameter ofl its'bore to the outside diameter of the rod 15. Y This maybe accomplished by crimping the forward-end of the,

stem 12 closer around the rod V15 or the .use of an auxiliary hollowpipe 24 inserted in the stem 12 and around the rod 15 as shown in Fig.2. Y'

Some changes may be made in the con-Y struction and arrangement of myimproved combination liquid dispensingfdevice without departing from thereal spirit and purpose of my invention, and it is my intention to coverby my claims any modified forms of structure or use of mechanicalequivalents which -f may be reasonably included within their scope. f

I claim: f l

1. In a device of the class described, a reservoir, a hollow steinsecured to said reservoir and having one end'communic'ating with theinside of the same, a. valve-seat formed in theend of the said stem thatcommunicates with the inside of said reservoir, a rodslid-- ably mountedin said stem and extending a f substantial dista-nce beyond the'forwardend of said stem, a valve-head formed on the rear end of said rodcapable of engaging said valve-seat, a bracket operatively ,connected tosaid stem and insideV said reservoir, a screw threaded into said bracketcapable of engaging said valve-head when said rod is moved to the rear,and a coil spring embracing said screw, having one end engaging saidbracket and its Vother end engaging said valve-head.

2. In a device of the class described, a reservoir, a hollow elongatedstem secured to said reservoir and communicating' with the inside ofthesame, a rod extending through said hollow elongated stein andterminating at a point a Considerable distance beyond said stem, twoelongated arms secured to the forward end portion of said stem and eX-tending along the sides of said rod toward its forward end, and a platehaving a hole in its center loosely embracing said rod at a point aconsiderable distance beyond the forward end of said stem and secured tosaid arms.

MOLLIE D. CHESN UT.

